在生物体的有性生殖过程中有关生殖细胞的产生配子种类的数目是学生常易出错的地方,关键是没有看清题目中的要求,想当然地答题而造成的,本文通过两道例题进行剖析。一、例题比较【典例1】某个精原细胞含有两对等位基因AaBb,分别位于两对同源染色体上,经减数分裂,该精 In the process of sexual reproduction of the organism, the number of germinal cells that produce gametes is a place where students often make mistakes. The key point is that they fail to see the requirements in the title and take it as a matter of course to answer the questions. This article analyzes through two examples . A sample comparison [Example 1] A spermatogonia contains two pairs of alleles AaBb, respectively, located in two pairs of homologous chromosomes, meiosis, the fine